<div ng-controller="progressMainCtrl">
    <button class="wi-btn" ng-click="start()">开始</button><hr />
    <wi-progress width="220" height="20" label="label" value="value" maxValue="50" labelplacement="'top'"></wi-progress><hr />
    <wi-progress width="220" height="20" label="label" value="value" maxValue="50" labelplacement="'center'"></wi-progress><hr />
    <wi-progress width="220" height="20" label="label" value="value" maxValue="50" labelplacement="'bottom'"></wi-progress><hr />
    <wi-progress width="220" height="20" label="label" value="value" maxValue="50" labelplacement="'left'"></wi-progress>
    <wi-progress width="220" height="20" label="label" value="value" maxValue="50" labelplacement="'right'"></wi-progress>
</div>